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Gentoo Linux Security Advisory GLSA 200405-05 |
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http://security.gentoo.org/ |
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|
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Severity: Normal |
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Title: Utempter symlink vulnerability |
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Date: May 13, 2004 |
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Bugs: #49536 |
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ID: 200405-05 |
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|
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Synopsis |
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======== |
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|
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Utempter contains a vulnerability that may allow local users to |
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overwrite arbitrary files via a symlink attack. |
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|
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Background |
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========== |
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|
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Utempter is an application that allows non-privileged apps to write |
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utmp (login) info, which otherwise needs root access. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 sys-apps/utempter < 0.5.5.4 >= 0.5.5.4 |
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|
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Description |
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=========== |
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|
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Utempter contains a vulnerability that may allow local users to |
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overwrite arbitrary files via a symlink attack. |
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|
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Impact |
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====== |
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|
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This vulnerability may allow arbitrary files to be overwritten with |
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root privileges. |
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|
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Workaround |
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========== |
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|
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There is no known workaround at this time. All users are advised to |
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upgrade to the latest available version of utempter. |
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|
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Resolution |
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========== |
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|
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All users of utempter should upgrade to the latest stable version: |
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# emerge sync |
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# emerge -pv ">=sys-apps/utempter-0.5.5.4" |
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# emerge ">=sys-apps/utempter-0.5.5.4" |
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|
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References |
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========== |
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|
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[ 1 ] CAN-2004-0233 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0233 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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|
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http://security.gentoo.org/glsa/glsa-200405-05.xml |
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|
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2004 Gentoo Technologies, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/1.0 |